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2016

The Tail at Store: A Revelation from Millions of Hours of Disk and SSD Deployments

3 years 16 days ago
The Tail at Store: A Revelation from Millions of Hours of Disk and SSD Deployments
We study storage performance in over 450,000 disks and 4,000 SSDs over 87 days for an overall total of 857 million (disk) and 7 million (SSD) drive hours. We find that storage performance instability is not uncommon: 0.2% of the time, a disk is more than 2x slower than its peer drives in the same RAID group (and 0.6% for SSD). As a consequence, disk and SSD-based RAIDs ex
Mingzhe Hao, Gokul Soundararajan, Deepak R. Kencha
Added 03 Apr 2016
Updated 03 Apr 2016
Type Journal
Year 2016
Where FAST
Authors Mingzhe Hao, Gokul Soundararajan, Deepak R. Kenchammana-Hosekote, Andrew A. Chien, Haryadi S. Gunawi
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